Compaq EP Series - Manuals

Contents v chapter 5 Connectors, Jumpers, and Switches 5.1 System Board .................................................................................................................. 5-1 5.1.1 Connectors, Jumpers, and Switches.................................................................... 5...

Compaq Deskpro EP Series of Personal Computers vii preface A BOUT T HIS G UIDE This Maintenance & Service Guide is a troubleshooting and repair guide that can be used for reference when servicing the Compaq Deskpro EP Series of Personal Computers. Onlyauthorized technicians trained by Compaq sho...

viii About This Guide Locating Additional Documentation The following documentation is available to support these products: ! User Documentation ! Technical Training Guides ! Compaq Service Advisories and Bulletins ! Compaq QuickFind ! Technical Reference Guide ! Compaq Service Quick Reference Guide

Compaq Deskpro EP Series of Personal Computers 1-1 chapter 1 P RODUCT D ESCRIPTION This chapter describes the model offerings and features of Compaq Deskpro EP Series ofPersonal Computers. Compaq Deskpro EP Series of Personal Computers

1-2 Product Description 1.1 Model Overview Compaq Deskpro EP Series of Personal Computers ship as either desktop or minitowermodels. They contain the unique, flexible Compaq ATX chassis, which allows you toeasily reconfigure the unit as a minitower by (1) removing the drives from the computer,(2) st...

Compaq Deskpro EP Series of Personal Computers 1-3 1.2 System Design ! Desktop models of the Compaq Deskpro EP Series of Personal Computers use aninnovative chassis to house the removable system board, expansion boards, powersupply, and mass storage devices. ! Internal components are accessible when...

1-4 Product Description 1.3 Preinstalled Software This computer ships with Windows 95, Windows 98, or Windows NT 4.0 installed as theoperating system, and also contains the following preloaded software: ! ROM-based Setup utilities ! Compaq Diagnostics for Windows ! Compaq support software and device...

Compaq Deskpro EP Series of Personal Computers 1-5 1.4 Computer Features Compaq Deskpro EP Series of Personal Computers ship with a mouse and keyboard.Some models are also equipped with a CD-ROM drive. A Compaq color monitor or othercompatible monitor does not ship with the computer. 1.4.1 Front Pan...

1-6 Product Description 1.4.2 Front Panel Controls and LEDs - Intel 810/810e Front Panel Controls and LEDs - Intel 810/ 810e Ref. Component/Function Ref. Component/Function 1 Power-On Light 6 CD-ROM Drive Busy Indicator* 2 Diskette Drive Activity Light 7 Headphone Volume Control 3 Diskette Eject But...

Compaq Deskpro EP Series of Personal Computers 1-9 1.4.5 Drive Positions Drive Positions Reference Drive Bay Configuration 1 , 2 1, 2 Two standard 5.25-inch, half-height bays for optional drives 3 3 One standard 3.5-inch, 1.44-MB diskette drive mounted with a drive adapter into a 5.25-inch bay 4 , 5...

1-10 Product Description 1.5 Serial Number Location The serial number and model information label is located on the access panel of theunit 1 . A second barcode label is located on the rear of the unit 2 . Serial Number Locations For the purpose of AssetControl, the serial number is embedded in CMOS...

Compaq Despro EP Series of Personal Computers 2-1 chapter 2 S PARE P ARTS Compaq Deskpro EP Series of Personal Computers . The Compaq Deskpro EP Series, Intel 440BX chipset models will be referred to in this MSG as 440BX. The Compaq Deskpro EP Series, Intel 810 chipset models will be referred to in ...

2-2 Spare Parts 2.1 System Unit 2.1.1 System Unit - 440BX System Unit Spare Parts - 440BX Model

Compaq Despro EP Series of Personal Computers 2-3 System Unit Spare Parts - 440BX Description Spare Part Number 1 Access panel 166867-001 2 Front bezel, complete with subpanel and bezel blanks 166868-001 3 Power supply, 200 Watt 166814-001 3 Power supply, 145 Watt 332863-001 4 Logo Kit, Deskpro EP (...

Compaq Despro EP Series of Personal Computers 2-15 2.5 Keyboards Keyboards Description Spare Part Number * Arabic 269513-171 * Belgian 269513-181 * Brazilian 269513-201 * BHCSY (Bosnia-Herzegovina, Croatia, Slovenia, and Yugoslavia) 269513-B41 * Czech 269513-221 * D a n i s h 269513-081 * Finnish 26...

2-16 Spare Parts 2.6 Miscellaneous Hardware Kit Miscellaneous Hardware Kit Miscellaneous Hardware Description Spare Part Number Miscellaneous hardware kit. Includes: 166877-001 1 Cover, slot (5 ea.) (101144-001) 2a I/O Panel for 440BX (166802-002) 2b I/O Panel for Intel 810/810e (123556-001) * I/O P...

Compaq Despro EP Series of Personal Computers 2-17 2.7 Miscellaneous Plastics Kit Miscellaneous Plastics Kit Miscellaneous Plastics Kit, Desktop and Minitower Description Spare Part Number Miscellaneous plastics kit includes: 166878-001 1 Diskette bezel (166776-001) 2 Foot, rubber (4 ea.) (166939-00...

2-18 Spare Parts 2.8 Miscellaneous Parts Miscellaneous Parts Miscellaneous Parts 1 Two-button mouse 166861-001 * Compaq Intellimouse 317863-001 2 Cable lock bracket 199109-001 3 Battery (440BX) 234556-001 * Battery (Intel 810) (for use on system board 401963-001) 153099-001 4 Fan a ssembly with four...

Compaq Despro EP Series of Personal Computers 2-19 2.9 Shipping Boxes Shipping Boxes (not illustrated) Description Spare Part Number Return Kit with buns (U.S.) 166990-001 Return Kit (international) 166990-002 2.10 Documentation and Software Documentation and Software (not illustrated) Description S...

Compaq Deskpro EP Series of Personal Computers 3-1 chapter 3 R EMOVAL AND R EPLACEMENT P RELIMINARIES 3.1 Routine Care 3.1.1 Cleaning Safety Precautions ! Never use solvents or flammable solutions to clean the computer. ! Never immerse any parts in water or cleaning solutions; apply any liquids to a...

3-2 Removal and Replacement Preliminaries 3.1.3 Cleaning the Keyboard Follow all safety precautions in Section 3.1.1 before cleaning the keyboard. To clean the tops of the keys or the keyboard body, follow the procedures described inSection 3.1.2. When cleaning debris from under the keys, review all...

Compaq Deskpro EP Series of Personal Computers 3-3 3.2 Electrostatic Discharge Information A sudden discharge of static electricity from your finger or other conductor can destroystatic-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, butdamage occurs. An electronic de...

3-4 Removal and Replacement Preliminaries 3.2.3 Personal Grounding Methods and Equipment Use the following equipment to prevent static electricity damage to equipment: ! Wrist straps are flexible straps with a minimum of one-megohm +/- 10% resistance in the ground cords. To provide proper ground, a ...

Compaq Deskpro EP Series of Personal Computers 3-5 ! Static-dissipative table or floor mats with hard tie to ground ! Field service kits ! Static awareness labels ! Wrist straps and footwear straps providing one-megohm +/- 10% resistance ! Material handling packages ! Conductive plastic bags ! Condu...

3-6 Removal and Replacement Preliminaries 3.3.4 Hard Drives ! Handle hard drives as delicate precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares. ! Use only the packaging provided by Compaq for shipping. ! Do not remove hard dr...

Compaq Deskpro EP Series of Personal Computers 4-1 chapter 4 R EMOVAL AND R EPLACEMENT P ROCEDURES This chapter provides general service information for the computer. Adherence to theprocedures and precautions described in this chapter is essential for proper service. After completing all necessary ...

4-2 Removal and Replacement Procedures 4.2 Disassembly Preparation Before adding any internal options or performing a removal/replacement: 1. Remove any diskette, compact disc, or tape from the computer. 2. Turn off the computer and any peripheral devices that are connected to it. WARNING: Power is ...

Compaq Deskpro EP Series of Personal Computers 4-3 4.3 Feet Installation Eight (8) rubber feet are mounted to the chassis, as shown below. No parts have to beremoved to access the feet. The replacement feet have an adhesive surface and are shippedwith a protective backing in place. Remove the feet f...

4-4 Removal and Replacement Procedures 4.4 Logo Plate Grasp the open side of the logo plate (left side if a desktop, bottom if a minitower) andpull outward 2 . To install a new logo plate, align the guide pins in the slots 1 , then press into place. ✎ When replacing the logo plate, ensure that the a...

Compaq Deskpro EP Series of Personal Computers 4-5 4.5 Cable Lock WARNING: To avoid injury, use care in handling the separated pieces of the cable lock bracket; metal edges may be sharp. Be sure to install the bracket so that sharp edges donot extend from the edges of the computer chassis. Depending...

4-6 Removal and Replacement Procedures Installing the Cable Lock Provision - Intel 810/810e To remove the cable lock provision, reverse the above procedure.

Compaq Deskpro EP Series of Personal Computers 4-7 4.6 Access Panel 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the pow...

4-8 Removal and Replacement Procedures 4.7 Front Bezel 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the powersource or t...

Compaq Deskpro EP Series of Personal Computers 4-9 4.8 Power Button 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the pow...

4-10 Removal and Replacement Procedures 4.9 Subpanel and Bezel Blanks The subpanel and bezel blanks must be removed from the front bezel if you are installinga mass storage device for the first time, or if you are converting the unit from a desktop toa minitower configuration or from a minitower to ...

Compaq Deskpro EP Series of Personal Computers 4-11 4.10 Power Switch CAUTION: The power switch should not be removed from the switch holder. Doing so may damage the switch components. 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power s...

Compaq Deskpro EP Series of Personal Computers 4-13 When installing additional drives, follow these guidelines: ! For optimal performance, connect hard drives to the primary controller. Connectexpansion devices, such as CD-ROM, IDE tape, and diskette drives to thesecondary controller. ! You may inst...

Compaq Deskpro EP Series of Personal Computers 4-15 7. While holding the drivelock in the unlocked position, remove the drive from thedrive bay. Removing an Internal 3.5-Inch Hard Drive 8. Remove the four guide screws from the drive. 9. Install two guide screws on each side of the replacement drive....

Compaq Deskpro EP Series of Personal Computers 4-19 6. While the drivelock is held in the unlatched position, remove the drive from thedrive bay. Removing a 3.5-inch Drive and Drive Adapter from a 5.25-inch External Drive Bay 7. Remove the bracket brace 1 from the top of the drive adapter by squeezi...

4-20 Removal and Replacement Procedures To replace the drive, reverse the previous procedures. ✎ The primary 3.5-inch diskette drive should only be installed into bay 3. Bay 3 isthe bottom bay in the minitower and the topmost bay in the desktop configuration. When replacing the drive, use the existi...

Compaq Deskpro EP Series of Personal Computers 4-21 4.12 Removing the Drivelocks The computer chassis contains two drivelock mechanisms. Drivelock 1 secures the external drives in the desktop configuration, drivelock 2 secures all drives in the minitower and the internal drives in the desktop config...

Compaq Deskpro EP Series of Personal Computers 4-23 10. Press in on the tabs to release the vertical drivelock from the chassis, then lift it up andout of the system while at the same time rotating the drivelock slightly to clear thetravel slots at the bottom of the drivelock. 11. Remove the spring ...

4-24 Removal and Replacement Procedures 4.13 Expansion Boards 4.13.1 440BX Deskpro EP Expansion Slots - 440BX (2-DIMM Model) Deskpro EP Expansion Slots - 440BX (3-DIMM Model) 1 ISA expansion slots 2 ISA/PCI shared expansion slots 3 PCI expansion slots 4 AGP graphics slot

Compaq Deskpro EP Series of Personal Computers 4-25 4.13.2 Intel 810 and 810e Deskpro EP Expansion Slots - Intel 810 Deskpro EP Expansion Slots - Intel 810e 1 ISA expansion slot 2 ISA/ISA shared expansion slots 3 PCI expansion slots ✎ Your 810e system board may differ from the one shown.

4-26 Removal and Replacement Procedures 4.13.3 Removing an Expansion Board 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from ...

Compaq Deskpro EP Series of Personal Computers 4-27 4.13.4 Installing an Expansion Board 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the po...

4-28 Removal and Replacement Procedures 5. Hold the board at each end and carefully rock it back and forth while pushingdownward, until the connectors fit completely and firmly into the expansion slot. Installing an Expansion Board 6. Secure the board to the chassis with the retaining screw. 7. Atta...

Compaq Deskpro EP Series of Personal Computers 4-29 4.14 Board Guide 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the po...

4-30 Removal and Replacement Procedures 4.15 System Memory 4.15.1 440BX The 440BX comes with at least 16 megabytes of synchronous dynamic random accessmemory (SDRAM) dual inline memory modules (DIMMs), upgradeable to 256 or 384MB. The memory sockets on the system board can be populated with 16-, 32-...

4-32 Removal and Replacement Procedures 4.16 AGP Graphics Board (440BX) 4.16.1 AGP Graphics Board Removal (440BX) 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to th...

4-34 Removal and Replacement Procedures 4.17 Processor Components 4.17.1 Processor 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power co...

Compaq Deskpro EP Series of Personal Computers 4-35 Removing the Celeron Processor from the System Board - 440BX To install a new processor, reverse this procedure. Before installing a Pentium II processor, make sure the release latches are in the lockedposition. This will cause the processor to mak...

Compaq Deskpro EP Series of Personal Computers 4-37 4.17.2 Processor Guide Rails 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord...

4-38 Removal and Replacement Procedures 7. With the Tuflok pins in their full up position, firmly pull on each leg of the processorrail to disengage it from the system board. 8. Place each of the type 2 processor rail goalposts (Compaq part number 350767-002) inposition with the open end facing the ...

Compaq Deskpro EP Series of Personal Computers 4-39 4.18 System Board 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the p...

4-40 Removal and Replacement Procedures 4.19 Internal Speaker 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the powersour...

Compaq Deskpro EP Series of Personal Computers 4-41 6. If an oval speaker is used on the computer, remove the four screws 2 that secure the speaker 3 to the rear of the chassis. Removing the Speaker From the Rear of the Chassis To install the new speaker, reverse the preceding steps.

4-42 Removal and Replacement Procedures 4.20 Lithium Battery 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the powersourc...

4-44 Removal and Replacement Procedures 5. Lift the battery out of the holder. Removing the Battery 6. Slide the replacement battery into position with the positive side up. The battery holderautomatically secures the battery in the proper position. 7. If you removed expansion boards, reinstall them...

Compaq Deskpro EP Series of Personal Computers 4-45 4.21 Fan Assembly 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the p...

4-46 Removal and Replacement Procedures 4.22 Power Supply 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the powersource o...

Compaq Deskpro EP Series of Personal Computers 4-47 Removing the Power Supply - Intel 810/810e To replace the power supply, reverse the above procedure.

4-48 Removal and Replacement Procedures 4.23 Converting a Desktop to a Minitower 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord...

4-50 Removal and Replacement Procedures 7. Reconnect the power, signal, and audio cables to the drives. 8. Remove the subpanel and rotate the bezel blanks 90 degrees (Section 4.9). CAUTION: Hold the subpanel straight when you pull it away from the front bezel. Pulling the subpanel away at an angle c...

Compaq Deskpro EP Series of Personal Computers 4-51 4.24 Converting a Minitower to a Desktop 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect th...

Compaq Despro EP Series of Personal Computers 5-1 chapter 5 C ONNECTORS , J UMPERS , AND S WITCHES 5.1 System Board 5.1.1 Connectors, Jumpers, and Switches System Board Overview - 440BX (Three-DIMM Board) Connectors, Jumpers, and Switches - 440BX (Three-DIMM Board) Item Description Item Description ...

5-4 Connectors, Jumpers, and Switches 5.1.2 Switches Location of SW1 DIP Switches on the System Board - 440BX Switch SW1 Settings (440BX) Password Control Disable Password S1 On Enable Password (Default setting) S1 Off Processor Speed S2 S3 S4 S5 233/66 MHz OFF OFF ON ON 266/66 MHz ON ON OFF ON 300/...

Compaq Despro EP Series of Personal Computers 5-9 Clearing Configuration Memory (CMOS) - Intel 810/810e) CMOS Button (SW50) Location 1. Turn off the computer and any external devices, and disconnect the power cord fromthe power outlet. 2. Disconnect the keyboard, monitor, and any other external equi...

5-10 Connectors, Jumpers, and Switches 5.2 Hard Drives The computer supports up to five drives in various configurations. When installingadditional drives, follow these guidelines: ! For optimal performance, connect hard drives to the primary controller. Connectexpansion devices, such as CD-ROM, IDE...

Compaq Despro EP Series of Personal Computers 5-11 5.2.2 Drive Jumper Settings If you are installing a drive with a signal cable that does not support cable select, you mustmanually set the drive jumpers. Jumper settings for a number of different drives are shownin the tables that follow. The illust...

5-12 Connectors, Jumpers, and Switches Maxtor Ultra ATA Hard Drive Jumper Settings Maxtor Ultra ATA Hard Drive Jumper Settings Definition J50 J48 J46 J44 J42 Single J Primary (in a dual drive system) J Secondary O Cable Select disabled* O enabled J 4092 Cylinder Limitation disabled* O enabled J Fact...

Compaq Deskpro EP Series of Personal Computers 6-1 chapter 6 S PECIFICATIONS 6.1 Specifications 6.1.1 System Desktop Dimensions Height Width Depth 6.60 in 17.65 in 17.11 in 16.76 cm 44.83 cm 43.46 cm Minitower Dimensions Height Width Length 17.65 in 6.60 in 17.11 in 44.83 cm 16.76 cm 43.46 cm Weight...

6-2 Specifications System Specifications, continued Power, Supply, 200 Watt (Intel 810/810e) Operating Voltage Range Rated Voltage Range Rated Line Frequency Rated input current (maximum) Heat dissipation, nominal Heat dissipation, maximum 90-132 VAC 100-127 VAC 47-63 Hz 6 A 525 BTU/Hr 1050 BTU/Hr 1...

Compaq Deskpro EP Series of Personal Computers 6-3 6.1.3 DMA Hardware DMA System Function DMA 0 Unused DMA 1 Audio (Alternate = DMA 0 or 3) DMA 2 Diskette Drive DMA 3 ECP Parallel Port LPT1 (Default; Alternate = DMA 0) DMA 4 DMA Controller Cascading (Not on ISA Bus) DMA 5 Unused DMA 6 Unused DMA 7 U...

Compaq Deskpro EP Series of Personal Computers 6-5 6.1.5 Memory Map Size Memory Address System Function 256 KB * FFFC0000h to FFFFFFFFh System ROM 3839 MB * 10000000h to FFFBFFFFh PCI Memory Expansion 255 MB * 00100000h to 0FFFFFFFh HOST or PCI Memory Expansion 128KB 000E0000h to 000FFFFFh System RO...

6-6 Specifications 6.2.2 Ultra ATA Hard Drives 3.2-GB 4.3-GB 4.3-GB 6.4-GB 6.4-GB Compaq Spare Part Number 332866-001 327646-001 134197-001 166973-001 134198-001 Drive Type 65 65 65 65 65 Revolutions Per Minute (RPM) 5400 5400 5400 5400 5400 Transfer Rate Interface (MBytes/sec) 33.3 33.3 66.6 33.3 6...

Compaq Deskpro EP Series of Personal Computers 6-9 6.3 Compaq Enhanced Keyboard Dimensions Height Width Depth 1.3 in 18.3 in 6.35 in 3.3 cm 46.5 cm 16.1 cm Weight 3.0 lb 1.4 kg 6.4 2-Button Mouse Dimensions Height Length Width 1.34 in 4.45 in 2.36 in 3.4 cm 11.3 cm 6.0 cm Weight 4.59 oz 130 g Base R...

6-10 Specifications 6.5.2 ATI RAGE PRO IIC AGP Resolution Refresh Rate Colors Supported 2-MB EDO RAM 1600 x 1200 75 Hz 256 1280 x 1024 85 Hz 256 1152 x 864 85 Hz 65K 1024 x 768 85 Hz 65K 800 x 600 85 Hz 16.7M 640 x 480 85 Hz 16.7M 6.5.3 NVIDIA RIVA 128 AGP Resolution Refresh Rate Colors Supported4-M...

Compaq Deskpro EP Series of Personal Computers 6-11 6.5.5 Matrox Millenium G200-SD AGP Resolution Refresh Rate Colors Supported 8-MB SDRAM 1920 x 1200 76 Hz 65K 1920 x 1200 65 Hz 16.7M 1920 x 1080 80 Hz 65K 1920 x 1080 70 Hz 16.7M 1800 x 1440 70 Hz 65K 1800 x 1440 60 Hz 16.7M 1600 x 1200 85 Hz 65K 1...

6-12 Specifications 6.6 Audio Controllers 440BX 440BX ESS 1869 ISA 16-bit full duplex audio with Compaq Premier ! Sound Creative Labs SoundBlaster 128V PCI with Compaq Premier ! Sound. Sampling rate 4 kHz to 48 kHz (adjustable) 48 kHz Full Scale Input Voltage (rms) Microphone-In Line-Input 0.050 1.0...

Compaq Deskpro EP Series of Personal Computers 7-1 chapter 7 S ERVICE N OTES CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the keys. 1. As of January 1, 1999, all 300-MHz and faster Celeron and Pentium processors areshipped with the processor spe...

Index I-1 Index A access panel spare part number (440BX), 2-3 spare part number (Intel 810/810e), 2-5 audio controller, specifications 440BX, 6-12Intel 810, 6-13 B battery proper disposal, 4-44 Battery locating on system board, 4-42 bezels spare part number, 2-3, 2-5 boxes, shipping, 2-19 C cable se...